12100112012 has 24 divisors (see below), whose sum is σ = 21646812432. Its totient is φ = 5916456000.

The previous prime is 12100111973. The next prime is 12100112027. The reversal of 12100112012 is 21021100121.

It is a junction number, because it is equal to n+sod(n) for n = 12100111984 and 12100112002.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 101114 + ... + 185537.

It is an arithmetic number, because the mean of its divisors is an integer number (901950518).

Almost surely, 2^12100112012 is an apocalyptic number.

It is an amenable number.

12100112012 is a deficient number, since it is larger than the sum of its proper divisors (9546700420).

12100112012 is a wasteful number, since it uses less digits than its factorization.

12100112012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286889 (or 286887 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 12100112012 its reverse (21021100121), we get a palindrome (33121212133).

The spelling of 12100112012 in words is "twelve billion, one hundred million, one hundred twelve thousand, twelve".